Google oauth2 login

app.js

@@ -61,6 +61,25 @@ app.post('/contact', contact.postContact);
 
 app.get('/auth/facebook', passport.authenticate('facebook'));
 app.get('/auth/facebook/callback', passport.authenticate('facebook', { successRedirect: '/', failureRedirect: '/login' }));
+
+
+app.get('/auth/google', passport.authenticate('google', {
+  scope: [
+    'https://www.googleapis.com/auth/userinfo.profile',
+    'https://www.googleapis.com/auth/userinfo.email'
+  ]
+}), function (req, res) {
+  // The request will be redirected to Google for authentication, so this
+  // function will not be called.
+});
+
+app.get('/auth/google/callback', passport.authenticate('google', {
+  failureRedirect: '/login'
+}), function (req, res) {
+  res.redirect('/');
+});
+
+
 app.get('/auth/foursquare', api.foursquareAuth);
 app.get('/auth/foursquare/callback', api.foursquareCallback);
 app.get('*', home.index);

config/passport.js

@@ -1,6 +1,7 @@
 var passport = require('passport'),
     LocalStrategy = require('passport-local').Strategy,
     FacebookStrategy = require('passport-facebook').Strategy,
+    GoogleStrategy = require('passport-google-oauth').OAuth2Strategy,
     User = require('../models/User'),
     config = require('./config.json');
 
@@ -65,7 +66,46 @@ passport.use(new FacebookStrategy({
       });
 
     });
+  }
+));
 
+passport.use(new GoogleStrategy({
+    clientID: config.google.clientId,
+    clientSecret: config.google.clientSecret,
+    callbackURL: config.google.callbackUrl
+  },
+  function(accessToken, refreshToken, profile, done) {
+    console.log(accessToken);
+    console.log(profile);
+    User.findOne({ google: profile.id }, function(err, existingUser) {
+
+      if (err) {
+        done(err);
+      }
+
+      if (existingUser) {
+        return done(null, existingUser);
+      }
+
+      var user = new User({
+        firstName: profile.name.givenName,
+        lastName: profile.name.familyName,
+        provider: profile.provider
+      });
+
+      user[profile.provider] = profile.id;
+
+      user.save(function(err) {
+        if (err) {
+          if (err.code === 11000) {
+            // Found another user with the same email
+
+          }
+        }
+        done(null, user);
+      });
+
+    });
   }
 ));
 

package.json

@@ -9,7 +9,7 @@
     "passport": "latest",
     "passport-local": "latest",
     "passport-facebook": "latest",
-    "passport-google": "latest",
+    "passport-google-oauth": "latest",
     "underscore": "latest",
     "forever": "latest",
     "node-foursquare": "latest",

views/login.jade

@@ -11,7 +11,7 @@ block content
           i.fa.fa-facebook-square
           |  Facebook
       .col-xs-6.col-sm-6.col-md-6
-        a.btn.btn-lg.btn-danger.btn-block(href='#')
+        a.btn.btn-lg.btn-danger.btn-block(href='/auth/google')
           i.fa.fa-google-plus-square
           |  Google
     .login-or